django re_path 配置正则表单式path

//djdemo1\urls.py
from django.contrib import admin

from django.conf import settings
from django.conf.urls.static import static,serve
from django.views.generic.base import RedirectView

from django.urls import path,re_path

urlpatterns = [
	# 匹配a3/re/任意数字 和 a3/re/ ， 不匹配 a3/re/1/2
    re_path(r'a3/re/\d*$', a3v.re_int),
    # 匹配a3/re/任意大小写字母 ，不匹配 a3/re/ 和 a3/re/a/b
    re_path(r'a3/re/[A-Za-z]+$', a3v.re_alphabet),
    # 匹配a3/re/任意字母数字/任意字母数字/****
    re_path(r'a3/re/.*$', a3v.re_all),

    path('favicon.ico', RedirectView.as_view(url=r'media/favicon.ico')), 
    # path('favicon.ico', RedirectView.as_view(url=r'static/img/1.jpg')), 

	# 设置用户上传文件的路径可访问，展示服务器图片的路径可访问
    re_path(r'^media/(?P<path>.*)$', serve,{'document_root':settings.MEDIA_ROOT},name='media'),

]

//app3\views.py
****************

def re_int(request):
    return HttpResponse('re_int')

def re_alphabet(request):
    return HttpResponse('re_alphabet')

def re_all(request):
    return HttpResponse('re_all')